fig9
![Constructing three-dimensional architectures to design advanced anodes materials for sodium-ion batteries: from nanoscale to microscale](https://image.oaes.cc/3d9040ff-fca5-469a-bb18-aacb7645bea9/em4063.fig.9.jpg)
Figure 9. (A) SEM, (B) TEM, and (C) HR-TEM images and (D) cycling performance of multi-shell Sn nanorods (TMV-Ni-Sn-C)[86]. (E) SEM, (F) TEM, (G) HR-TEM images and (H) cycling performance of multi-shell BTO@SnO2@P-C, (I) schematic illustration of the sodiation mechanism of BTO@SnO2@P-C[87]. (J) SEM and (K and L) TEM images and (M) cycling performance of multi-core-shell